City officials are preparing for a visit from Homeland Security Secretary Jeh Johnson. His visit comes just one week after a bizarre attack on three Transportation Security Administration (TSA) officers at Armstrong International Airport.

City officials are preparing for a visit from Homeland Security Secretary Jeh Johnson. His visit comes just one week after a bizarre attack on three Transportation Security Administration (TSA) officers at Armstrong International Airport.

One week ago, Richard White stormed the security line armed with a machete and insect spray. The 63-year-old was shot by a Jefferson Parish sheriff's deputy after he tried to attack a TSA agent. He later died at the hospital. No one else was seriously injured.

The union representing TSA officers say this was yet another incident that exposed the vulnerabilities at airports. In 2013, a TSA officer at LAX Airport in Los Angeles was shot. Union reps say it's time increase police presence at security checkpoints and to give weapons to TSA officers. But one former TSA administrator says weapons not the answer for agents.

On Friday, Secretary Johnson will meet with law enforcement from the two agencies that stopped what could have been a much more tragic situation -- thanking them for the work they did last week and that they do every day to protect millions of passengers.